From a publication by the Mayo Clinic:
"Try starting your day by thinking of someone you're grateful for as soon as you wake up. It could be appreciating a friend who sends you funny texts, a teacher who recognizes your
child's gifts, or the barista who hands you your coffee and shares friendly conversation.
Remember that behavior changes biology. Positive gestures benefit you by releasing oxytocin, a hormone that helps connect people. Some people call it the love hormone.
You'll also benefit the person on the other end of the gesture. Sharing kindness can make you healthier and happier."